feat: contracts verification on sourcify

Author: jaybuidl

contracts/README.md

@@ -149,12 +149,17 @@ yarn hardhat node --tags Arbitration,VeaMock
 yarn test --network localhost
 ```
 
-#### 4. Verify the Source Code for Contracts
+#### 4. Verify the Source Code
 
 This must be done for each network separately.
 
 ```bash
+# explorer
 yarn etherscan-verify --network <arbitrumGoerli|arbitrum|chiado|gnosischain|goerli|mainnet>
+
+# sourcify
+yarn sourcify --network <arbitrumGoerli|arbitrum|chiado|gnosischain|goerli|mainnet>
+
 ```
 
 ## Ad-hoc procedures

contracts/package.json

@@ -26,6 +26,7 @@
     "simulate": "hardhat simulate:all",
     "simulate-local": "hardhat simulate:all --network localhost",
     "etherscan-verify": "hardhat etherscan-verify",
+    "sourcify": "hardhat sourcify --write-failing-metadata",
     "size": "hardhat size-contracts --no-compile",
     "watch": "hardhat watch",
     "docgen": "hardhat docgen",